Andrew Leeds — who for the past year has been terrorizing Booth and Brennan as hacktivist-turned-murderer Christopher Pelant — has booked a potentially recurring role on ABC’s medical juggernaut, TVLine has learned exclusively.

Grey’s is keeping a tight lid on the specifics surrounding Leeds’ Grey’s character in order to protect an upcoming, top-secret storyline, but we can confirm he is not playing a doctor. Or a serial killer.

Grey’s Anatomy‘s ninth season premieres Thursday, Sept. 27 at 9/8c. Leeds is slated to first appear during November sweeps.

In other Grey’s Season 9 news, here’s a first clip from the premiere, in which Derek bonds with Callie:Follow @MichaelAusiello